With 25 years of fabulous weddings under his belt -- including the nuptials of stars like Jennifer Lopez, Alyssa Milano, and Demi Moore -- celebrity event planner Colin Cowie knows a thing or two about creating a dream wedding. We caught up with Cowie at Platinum Jewelry’s wedding trend lunch, where he was kind enough to pass along some of his expert knowledge. His ultimate advice for an unforgettable wedding? Personalize! “The more personality a bride puts into her wedding, the more interesting the wedding actually is,” he told us. Click the photo to check out the eight tips Cowie shared with us, on everything from DIY décor to proper social media etiquette.